Trace number 308857

Some explanations

A solver is run under the control of another program named runsolver. runsolver is in charge of imposing the CPU time limit and the memory limit to the solver. It also monitors some information about the process. The trace of the execution of a solver is divided into four (or five) parts:
  1. SOLVER DATA
    This is the output of the solver (stdout and stderr).
    Note that some very long lines in this section may be truncated by your web browser ! In such a case, you may want to use the "Download as text" link to get the trace as a text file.

    When the --timestamp option is passed to the runsolver program, each line output by the solver is prepended with a timestamp which indicates at what time the line was output by the solver. Times are relative to the start of the program, given in seconds, and are wall clock time (not CPU time).

    As some 'v lines' may be very long (sometimes several megabytes), the 'v line' output by your solver may be split on several lines to help limit the size of the trace recorded in the database. In any case, the exact output of your solver is preserved in a trace file.
  2. VERIFIER DATA
    The output of the solver is piped to a verifier program which will search a value line "v " and, if found, will check that the given interpretation satisfies all constraints.
  3. CONVERSION SCRIPT DATA (Optionnal)
    When a conversion script is used, this section shows the messages that were output by the conversion script.
  4. WATCHER DATA
    This is the informations gathered by the runsolver program. It first prints the different limits. There's a first limit on CPU time set to X seconds (see the parameters in the trace). After this time has ellapsed, runsolver sends a SIGTERM and 2 seconds later a SIGKILL to the solver. For safety, there's also another limit set to X+30 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (see the parameters in the trace).
    Every ten seconds, the runsolver process fetches the content of /proc/loadavg, /proc/pid/stat and /proc/pid/statm (see man proc) and prints it as raw data. This is only recorded in case we need to investigate the behaviour of a solver. The memory used by the solver (vsize) is also given every ten seconds.
    When the solver exits, runsolver prints some informations such as status and time. CPU usage is the ratio CPU Time/Real Time.
  5. LAUNCHER DATA
    These informations are related to the script which will launch the solver. The most important informations are the command line given to the solver, the md5sum of the different files and the dump of the /proc/cpuinfo and /proc/meminfo which provides some useful information on the computer.

Solver answer on this benchmark

Solver NameAnswerCPU timeWall clock time
minisat SAT 2007 (with assertions)UNSAT 284.78 284.863

General information on the benchmark

Namerandom/2+p/p0.7/v4500/
unif2p-p0.7-v4500-c12015-S1293761391-11-UNSAT.cnf
MD5SUMbd48c0af40579fae130a490637a0c778
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark81.1437
Satisfiable
(Un)Satisfiability was proved
Number of variables4497
Number of clauses12014
Sum of the clauses size32438
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 23604
Number of clauses of size 38410
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

0.00/0.00	c This is MiniSat 2.0 (Feb 1 2007, SAT-Competition version)
0.00/0.00	c ============================[ Problem Statistics ]=============================
0.00/0.00	c |                                                                             |
0.00/0.00	c |  Number of variables:  4500                                                 |
0.00/0.00	c |  Number of clauses:    12014                                                |
0.00/0.01	c |  Parsing time:         0.01         s                                       |
0.00/0.04	c ============================[ Search Statistics ]==============================
0.00/0.04	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.00/0.04	c |           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.00/0.04	c ===============================================================================
0.00/0.04	c |         0 |    3136     9936    30004 |     3312        0    nan |  0.000 % |
0.00/0.06	c |       101 |    3136     9936    30004 |     3643      101     23 |  0.000 % |
0.00/0.07	c |       251 |    3136     9936    30004 |     4007      251     24 |  0.000 % |
0.00/0.10	c |       479 |    3136     9936    30004 |     4408      479     24 |  0.000 % |
0.10/0.14	c |       817 |    3136     9936    30004 |     4849      817     24 |  0.000 % |
0.20/0.21	c |      1323 |    3136     9936    30004 |     5334     1323     23 |  0.000 % |
0.30/0.32	c |      2082 |    3136     9936    30004 |     5867     2082     22 |  0.000 % |
0.40/0.49	c |      3222 |    3136     9936    30004 |     6454     3222     24 |  0.000 % |
0.71/0.80	c |      4932 |    3136     9936    30004 |     7099     4932     25 |  0.000 % |
1.22/1.30	c |      7495 |    3136     9936    30004 |     7809     3800     23 |  0.000 % |
2.04/2.06	c |     11340 |    3136     9936    30004 |     8590     7645     24 |  0.000 % |
3.27/3.29	c |     17107 |    3136     9936    30004 |     9449     4563     24 |  0.000 % |
5.11/5.12	c |     25759 |    3135     9925    29968 |    10394     8279     27 |  0.022 % |
7.97/8.09	c |     38734 |    3135     9925    29968 |    11433    10704     29 |  0.022 % |
12.89/12.92	c |     58195 |    3135     9925    29968 |    12577     6884     24 |  0.022 % |
20.15/20.27	c |     87388 |    3135     9925    29968 |    13835    10395     24 |  0.022 % |
31.93/32.01	c |    131177 |    3135     9925    29968 |    15218    11810     28 |  0.022 % |
50.88/50.92	c |    196861 |    3134     9922    29960 |    16740    10281     29 |  0.044 % |
81.08/81.17	c |    295387 |    3134     9922    29960 |    18414    15190     25 |  0.044 % |
130.33/130.47	c |    443176 |    3125     9881    29843 |    20255    18672     29 |  0.244 % |
206.81/206.98	c |    664861 |    3125     9881    29843 |    22281    14861     27 |  0.244 % |
284.72/284.85	c ===============================================================================
284.72/284.85	c restarts              : 21
284.72/284.85	c conflicts             : 879236         (3088 /sec)
284.72/284.85	c decisions             : 1106815        (1.74 % random) (3887 /sec)
284.72/284.85	c propagations          : 282477098      (992040 /sec)
284.72/284.85	c conflict literals     : 25225885       (41.75 % deleted)
284.72/284.85	c Memory used           : 9.14 MB
284.72/284.85	c CPU time              : 284.744 s
284.72/284.85	c 
284.72/284.86	s UNSATISFIABLE

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node67/watcher-308857-1172529770 -o ROOT/results/node67/solver-308857-1172529770 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/308857-1172529770/minisat /tmp/evaluation/308857-1172529770/instance-308857-1172529770.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 14416
/proc/meminfo: memFree=1955440/2055920 swapFree=4183972/4192956
[pid=14416] ppid=14414 vsize=2508 CPUtime=0
/proc/14416/stat : 14416 (minisat) R 14414 14416 14311 0 -1 4194304 326 0 0 0 0 0 0 0 18 0 1 0 272934591 2568192 310 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134533031 0 0 4096 3 0 0 0 17 1 0 0
/proc/14416/statm: 627 310 58 138 0 486 0

[startup+0.107119 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 14416
/proc/meminfo: memFree=1955440/2055920 swapFree=4183972/4192956
[pid=14416] ppid=14414 vsize=3460 CPUtime=0.1
/proc/14416/stat : 14416 (minisat) R 14414 14416 14311 0 -1 4194304 586 0 0 0 10 0 0 0 18 0 1 0 272934591 3543040 570 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134728701 0 0 4096 3 0 0 0 17 1 0 0
/proc/14416/statm: 865 570 73 138 0 724 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 3460

[startup+0.51516 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 14416
/proc/meminfo: memFree=1955440/2055920 swapFree=4183972/4192956
[pid=14416] ppid=14414 vsize=3460 CPUtime=0.51
/proc/14416/stat : 14416 (minisat) R 14414 14416 14311 0 -1 4194304 587 0 0 0 51 0 0 0 21 0 1 0 272934591 3543040 571 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134550579 0 0 4096 3 0 0 0 17 1 0 0
/proc/14416/statm: 865 571 73 138 0 724 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 3460

[startup+1.33525 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 14417
/proc/meminfo: memFree=1953128/2055920 swapFree=4183972/4192956
[pid=14416] ppid=14414 vsize=3872 CPUtime=1.32
/proc/14416/stat : 14416 (minisat) R 14414 14416 14311 0 -1 4194304 688 0 0 0 132 0 0 0 25 0 1 0 272934591 3964928 672 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134550642 0 0 4096 3 0 0 0 17 1 0 0
/proc/14416/statm: 968 672 73 138 0 827 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 3872

[startup+2.97142 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 14417
/proc/meminfo: memFree=1952688/2055920 swapFree=4183972/4192956
[pid=14416] ppid=14414 vsize=4164 CPUtime=2.96
/proc/14416/stat : 14416 (minisat) R 14414 14416 14311 0 -1 4194304 757 0 0 0 296 0 0 0 25 0 1 0 272934591 4263936 741 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134556286 0 0 4096 3 0 0 0 17 1 0 0
/proc/14416/statm: 1041 741 73 138 0 900 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 4164

[startup+6.24876 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 14417
/proc/meminfo: memFree=1952112/2055920 swapFree=4183972/4192956
[pid=14416] ppid=14414 vsize=4560 CPUtime=6.23
/proc/14416/stat : 14416 (minisat) R 14414 14416 14311 0 -1 4194304 864 0 0 0 623 0 0 0 25 0 1 0 272934591 4669440 848 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134550720 0 0 4096 3 0 0 0 17 1 0 0
/proc/14416/statm: 1140 848 73 138 0 999 0
Current children cumulated CPU time (s) 6.23
Current children cumulated vsize (KiB) 4560

[startup+12.7014 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 14417
/proc/meminfo: memFree=1951600/2055920 swapFree=4183972/4192956
[pid=14416] ppid=14414 vsize=5088 CPUtime=12.68
/proc/14416/stat : 14416 (minisat) R 14414 14416 14311 0 -1 4194304 972 0 0 0 1268 0 0 0 25 0 1 0 272934591 5210112 956 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134550521 0 0 4096 3 0 0 0 17 1 0 0
/proc/14416/statm: 1272 956 73 138 0 1131 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 5088

[startup+25.5038 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 14417
/proc/meminfo: memFree=1950896/2055920 swapFree=4183972/4192956
[pid=14416] ppid=14414 vsize=5748 CPUtime=25.49
/proc/14416/stat : 14416 (minisat) R 14414 14416 14311 0 -1 4194304 1146 0 0 0 2548 1 0 0 25 0 1 0 272934591 5885952 1130 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134550706 0 0 4096 3 0 0 0 17 1 0 0
/proc/14416/statm: 1437 1130 73 138 0 1296 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 5748

[startup+51.1085 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 14417
/proc/meminfo: memFree=1950000/2055920 swapFree=4183972/4192956
[pid=14416] ppid=14414 vsize=6540 CPUtime=51.08
/proc/14416/stat : 14416 (minisat) R 14414 14416 14311 0 -1 4194304 1354 0 0 0 5106 2 0 0 25 0 1 0 272934591 6696960 1338 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134550652 0 0 4096 3 0 0 0 17 1 0 0
/proc/14416/statm: 1635 1338 73 138 0 1494 0
Current children cumulated CPU time (s) 51.08
Current children cumulated vsize (KiB) 6540

[startup+102.315 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 14417
/proc/meminfo: memFree=1948976/2055920 swapFree=4183972/4192956
[pid=14416] ppid=14414 vsize=7620 CPUtime=102.27
/proc/14416/stat : 14416 (minisat) R 14414 14416 14311 0 -1 4194304 1606 0 0 0 10225 2 0 0 25 0 1 0 272934591 7802880 1590 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134550720 0 0 4096 3 0 0 0 17 1 0 0
/proc/14416/statm: 1905 1590 73 138 0 1764 0
Current children cumulated CPU time (s) 102.27
Current children cumulated vsize (KiB) 7620

[startup+162.333 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 14417
/proc/meminfo: memFree=1948400/2055920 swapFree=4183972/4192956
[pid=14416] ppid=14414 vsize=8152 CPUtime=162.28
/proc/14416/stat : 14416 (minisat) R 14414 14416 14311 0 -1 4194304 1753 0 0 0 16226 2 0 0 25 0 1 0 272934591 8347648 1737 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134550652 0 0 4096 3 0 0 0 17 1 0 0
/proc/14416/statm: 2038 1737 73 138 0 1897 0
Current children cumulated CPU time (s) 162.28
Current children cumulated vsize (KiB) 8152

[startup+222.346 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 14417
/proc/meminfo: memFree=1947760/2055920 swapFree=4183972/4192956
[pid=14416] ppid=14414 vsize=8828 CPUtime=222.27
/proc/14416/stat : 14416 (minisat) R 14414 14416 14311 0 -1 4194304 1916 0 0 0 22225 2 0 0 25 0 1 0 272934591 9039872 1900 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134550582 0 0 4096 3 0 0 0 17 1 0 0
/proc/14416/statm: 2207 1900 73 138 0 2066 0
Current children cumulated CPU time (s) 222.27
Current children cumulated vsize (KiB) 8828

[startup+282.36 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 14417
/proc/meminfo: memFree=1947248/2055920 swapFree=4183972/4192956
[pid=14416] ppid=14414 vsize=9360 CPUtime=282.27
/proc/14416/stat : 14416 (minisat) R 14414 14416 14311 0 -1 4194304 2030 0 0 0 28225 2 0 0 25 0 1 0 272934591 9584640 2014 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134555832 0 0 4096 3 0 0 0 17 1 0 0
/proc/14416/statm: 2340 2014 73 138 0 2199 0
Current children cumulated CPU time (s) 282.27
Current children cumulated vsize (KiB) 9360

Solver just ended. Dumping a history of the last processes samples

[startup+283.486 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 14417
/proc/meminfo: memFree=1947248/2055920 swapFree=4183972/4192956
[pid=14416] ppid=14414 vsize=9360 CPUtime=283.39
/proc/14416/stat : 14416 (minisat) R 14414 14416 14311 0 -1 4194304 2030 0 0 0 28337 2 0 0 25 0 1 0 272934591 9584640 2014 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134556084 0 0 4096 3 0 0 0 17 1 0 0
/proc/14416/statm: 2340 2014 73 138 0 2199 0
Current children cumulated CPU time (s) 283.39
Current children cumulated vsize (KiB) 9360

[startup+284.306 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 14417
/proc/meminfo: memFree=1947248/2055920 swapFree=4183972/4192956
[pid=14416] ppid=14414 vsize=9360 CPUtime=284.21
/proc/14416/stat : 14416 (minisat) R 14414 14416 14311 0 -1 4194304 2030 0 0 0 28419 2 0 0 25 0 1 0 272934591 9584640 2014 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134550582 0 0 4096 3 0 0 0 17 1 0 0
/proc/14416/statm: 2340 2014 73 138 0 2199 0
Current children cumulated CPU time (s) 284.21
Current children cumulated vsize (KiB) 9360

[startup+284.714 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 14417
/proc/meminfo: memFree=1947248/2055920 swapFree=4183972/4192956
[pid=14416] ppid=14414 vsize=9360 CPUtime=284.62
/proc/14416/stat : 14416 (minisat) R 14414 14416 14311 0 -1 4194304 2030 0 0 0 28460 2 0 0 25 0 1 0 272934591 9584640 2014 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134551025 0 0 4096 3 0 0 0 17 1 0 0
/proc/14416/statm: 2340 2014 73 138 0 2199 0
Current children cumulated CPU time (s) 284.62
Current children cumulated vsize (KiB) 9360

[startup+284.816 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 14417
/proc/meminfo: memFree=1947248/2055920 swapFree=4183972/4192956
[pid=14416] ppid=14414 vsize=9360 CPUtime=284.72
/proc/14416/stat : 14416 (minisat) R 14414 14416 14311 0 -1 4194304 2030 0 0 0 28470 2 0 0 25 0 1 0 272934591 9584640 2014 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134550582 0 0 4096 3 0 0 0 17 1 0 0
/proc/14416/statm: 2340 2014 73 138 0 2199 0
Current children cumulated CPU time (s) 284.72
Current children cumulated vsize (KiB) 9360

Child status: 0
Real time (s): 284.863
CPU time (s): 284.78
CPU user time (s): 284.751
CPU system time (s): 0.028995
CPU usage (%): 99.9709
Max. virtual memory (cumulated for all children) (KiB): 9360

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 284.751
system time used= 0.028995
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2036
page faults= 0
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 7
involuntary context switches= 735

runsolver used 0.236963 second user time and 0.528919 second system time

The end

Launcher Data (download as text)

Begin job on node67 on Mon Feb 26 22:42:50 UTC 2007

IDJOB= 308857
IDBENCH= 20243
IDSOLVER= 109
FILE ID= node67/308857-1172529770

PBS_JOBID= 3971802

Free space on /tmp= 66558 MiB

SOLVER NAME= minisat SAT 2007
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.7/v4500/unif2p-p0.7-v4500-c12015-S1293761391-11-UNSAT.cnf
COMMAND LINE= /tmp/evaluation/308857-1172529770/minisat /tmp/evaluation/308857-1172529770/instance-308857-1172529770.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node67/watcher-308857-1172529770 -o ROOT/results/node67/solver-308857-1172529770 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/308857-1172529770/minisat /tmp/evaluation/308857-1172529770/instance-308857-1172529770.cnf            

META MD5SUM SOLVER= 120abd248b069e44985635f055606c5a
MD5SUM BENCH=  bd48c0af40579fae130a490637a0c778

RANDOM SEED= 536329159

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node67.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.236
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5914.62
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.236
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1955848 kB
Buffers:          7488 kB
Cached:          57320 kB
SwapCached:       3056 kB
Active:          20896 kB
Inactive:        53472 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1955848 kB
SwapTotal:     4192956 kB
SwapFree:      4183972 kB
Dirty:            1084 kB
Writeback:           0 kB
Mapped:          15124 kB
Slab:            11600 kB
Committed_AS:   748364 kB
PageTables:       1452 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66558 MiB

End job on node67 on Mon Feb 26 22:47:35 UTC 2007